Bloch mode spatial harmonic decomposition in integrated localized surface plasmon chain

M. Février; P. Gogol; V. Yam; R. Megy; B. Dagens

doi:10.1117/12.2037720

8 March 2014 Bloch mode spatial harmonic decomposition in integrated localized surface plasmon chain

M. Février, P. Gogol, V. Yam, R. Megy, B. Dagens

Proceedings Volume 8988, Integrated Optics: Devices, Materials, and Technologies XVIII; 89880T (2014) https://doi.org/10.1117/12.2037720
Event: SPIE OPTO, 2014, San Francisco, California, United States

Abstract

We consider a gold nanoparticle chain integrated on a dielectric waveguide. With appropriate geometrical parameters, such a chain behaves as a waveguide. We show that the spatial harmonics generated in the sub-wavelength periodic structure can be locally separated or extracted. This is done by playing with the phase matching condition of the coupling with the dielectric waveguide: only the fundamental component is locally cancelled in the periodic structure, resulting in a non-monotone phase evolution along the structure. Additionnally we show that the analysis of spatial harmonics allows extracting more information on the localized surface plasmon mode generation.

Citation Download Citation

M. Février, P. Gogol, V. Yam, R. Megy, and B. Dagens "Bloch mode spatial harmonic decomposition in integrated localized surface plasmon chain", Proc. SPIE 8988, Integrated Optics: Devices, Materials, and Technologies XVIII, 89880T (8 March 2014); https://doi.org/10.1117/12.2037720

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